Dr KDSS B.O.T.C.K Bolt-On Trackbar Correction kit for 4Runner (2025-2026), Land Cruiser 250 & GX550

Correct rear suspension geometry and eliminate unwanted axle shift after lifting your vehicle with the Dr. KDSS B.O.T.C.K. (Bolt-On Track Bar Correction Kit) for the 2025-2026 Toyota 4Runner, Toyota Land Cruiser 250, and Lexus GX550. Designed to restore proper track bar angles, this bolt-on solution improves stability, handling, and overall suspension performance without requiring welding.

When these platforms are lifted, the rear track bar angle becomes excessive, causing the axle to move side-to-side instead of cycling naturally up and down. The B.O.T.C.K. kit corrects this by raising the pivot point, flattening the track bar angle, and restoring predictable handling both on pavement and off-road.

Features

• Corrects Rear Suspension Geometry: Repositions the track bar mounting point to reduce lateral axle movement caused by lifts.
• Improves Driving Stability: Helps your vehicle track straight and feel planted both on-road and off-road.
• True Bolt-On Installation: No welding required, making installation straightforward for both DIY and professional installs.
• Works With KDSS & Non-KDSS Models: Compatible regardless of suspension configuration.
• Strength-Focused Engineering: Wrap-around bracket design distributes load across the OEM mount instead of concentrating stress on welds.
• Multiple Mounting Positions: Adjustable mounting locations allow proper correction based on lift height.
• Zinc-Coated Hardware: Corrosion-resistant hardware built to handle harsh environments.

Fitment

Fits:

• Toyota 4Runner (2025-2026)
• Toyota Land Cruiser 250
• Lexus GX550

How to Choose the Correct Version

To determine the correct configuration:

1. Park on level ground
2. Measure from the ground to the center of the frame-side track bar bolt
3. Measure from the ground to the center of the axle-side track bar bolt
4. Subtract the two measurements

Lift recommendations:

• 1.5"–2.99" difference: Shorty version (or bottom hole on standard bracket)
• 3"+ difference: Standard version (top hole recommended)

Tip: If you plan to go taller later, the standard version provides more adjustment options.

Installation Notes

• Torque all hardware to 105 ft-lbs
• Use blue Loctite (red optional for extreme applications)
• Updated design uses hex nuts instead of flange nuts
• Washer on side bolt no longer required
• Designed for lifted applications where track bar angle correction is needed

What’s Included

• Front bracket
• Rear bracket
• Flag nut
• (1) M14 x 1.5 x 75mm flange head bolt
• (1) M14 x 1.5 x 80mm flange head bolt
• (1) M14 x 1.5 x 35mm flange head bolt
• (1) M14 x 1.5 x 30mm flange head bolt
• (1) M14 hex nut
• Zinc-coated hardware

Summary

If you've lifted your 6th Gen 4Runner, Land Cruiser 250, or GX550, the Dr. KDSS B.O.T.C.K. Track Bar Correction Kit is an essential upgrade to restore proper suspension geometry and eliminate rear axle shift. With a strong bolt-on design and proven performance benefits, it’s a smart upgrade for vehicles built to be driven both on and off the trail.